406chvycamaro

iTrader: (7)

I'm in the process of installing a new engine in my Camaro and I can't find the thread pitch of the port that is just past the valley cover on the rear of the block. I initially thought it was 1/8npt but it is a good bit smaller than that. Does anybody knows if this is an oil port and what the thread size is? Any help would be greatly appreciated. Thanks

stevieturbo

Unless you know who made it...you're in a better position than anyone to say.

But from that photo, no way whatsoever does it look too small for 1/8" NPT, assuming you're referring to that open threaded port just below a bit of tape.

406chvycamaro

iTrader: (7)

Yeah the one on the right I had drilled for 1/8npt. The one in question is the one on the block on the back left.

G Atsma

Do you have an assortment of metric screws? See what fits....

B52bombardier1

Several years ago, I bought "The Original Thread Checker" at the link below, actually an Ebay purchase. Probably one of the handiest tools I've ever bought. You can't see it but the size and thread pitch are embossed into each checker. Even the obscure old screws and nuts are covered here. This thing even checks the sizes you will never find in the Lowes and Home Depot hardware aisles.


Rick

G Atsma

And it's Dorman.... available EVERYWHERE!

79LS1FOX

iTrader: (11)

Its 16mm 1.5 auto meter sells an adapter fitting for it #2268

stevieturbo

If you mean the hole the same as all the fixing holes for the valley cover, then it is the same standard M8x1.25

Cheese Weasel

Man, I've had that in the back of my mind for months now, but I wasn't sure if it would be worth the money - now you've got me wishing I'd bought it way back when I started my swap...

406chvycamaro

iTrader: (7)

Thank you everyone for the help. It was M8